Legacy handshake agreement present between HWH & DHN Divisions.
22387/22388 spends more time at Liluah and Tikiapara sheds than at DHN CDO...
The fact is that both 12339/12340 & 22387/22388 go into the CDOs of their destinations.
Anyways RBPC certificate needs to verified and issued at DHN every 2-3 days..